Improved sash-balance



i 4To all whom' it mei/y concern v the pawl E. Y y

i The ratchet Il is constructed with rabbets on the` back, representedin cross-section atd d', in fig. 3. The.ratchet is firmly secured to theface of the window-stile. y A The adjusting-pawl is constructed withlugs 3 3,

, 1 l ama sito attacca.

oRso'Nj ARMSTRNG, orosHKosH, wIseoNsiN;

Letters Patent No. 95,180, dated September QS, 18,69.

IMPRovnD Sasa-BALANCE.

; The-Schedule referred to these Lettera Patent and making part ofthesame.

Beit known that I, ORSON Amrs'raorra of the city of Oshkosh, Stateo'f,`Wisconsin, have invented a new `and improved Balance-Sash andAdjustment; and I Ydo hereby declare that fthe followingis a full andexact description' thereof, reference` being had to the accompanyingd1awings,pand to the letters of refl.

erence-marked thereon, making a -part of ,this specilication. i y 3 Thenature of m`y`in`vention` consists in the applicationof a ratchet andpawl to the side of a window sash, as a means of support and adjustment,and the use of `thexsame iucombination with the upper and lower sash ofa window, when the sameareV balanced andattaehedtogether with a cord,passing over an i intermediate p1'1lley,ji'.hel ratchet being secured tothe a face of a stilev of the lowersash, and the cordattaehed totheratchet. Y To enable others skilled in the art to make and use myinvention, I will proceed to describefits construction and operation. ia Figure 1 is a front elevation.- Figure 2 -is a verticalcross-section,I cutting through the cord and ratchet.` Figure 3 is,anenlarged cross-section.` of the sashstileand ratchet.` i. Figure 4 isa perspective view of the pawl enlarged.

`X X is a rectangular window-frame.

A A are window-sash 'B is apulley. i u c c-c c are'friction-rollers,y orbearings. .lcisa'cord` s :l is an adjusting-ratchet, rabbeted on theback at d d', to receive` the lugs 3 3 of the pawl, gf4, E is anadjusting-pawl, with a handle, F is a fastening-pawl. `The cord 7c ismade ihst to the upper sash atv W. `From thence it passes over thepulley B,and from thence down in front of the sash, and is secured tothat ply in the rabbets d d in the ratchet d, and se cures the pawltoservice.

i F is a pawl, that locks the sash when the window is closed, or whenthe top sash is partially'closed.

YEach sash is provided with friction-rollers, as shown at c e in iig. 1,that have their bearings against the jamb-casing of the window-frame,and thus allow easy vertical action ofthe sash. ,p

In sash provided with a broad mortise-pieeaor mullion-bar, in theeentre,the ratchet d audpawi E may be fastened thereto, and tle cordattached to the. centre of the window, and thus used, as firstdescribed, without theai'd of the friction-rollers c c.

' The bearings of the frictionrollers cc, on the face "of thejamb-casing, may likewise be faced with iron or sheet-metal. i i

Y Having described the several parts of my invention,

I will now proceed to describe itsoperation.

The upper and lower sash being closed, as seen in ig.`1, relieve thefastening-pawl F; raise the lower sash in the usual manner, (the uppersash being'at'-,

tached tothe lower sash, as described) and the uppeuf sash will belowered in a corresponding degree.

To lower the upper sash, seize the pawl E, discou' neet it from theratchet, and allow -the upper sashV to drop to the desired position;then release your hold on the pawl, allowing the latter to again catchthe ratchet. y

'lo raise the lower sash, seize the pawl E, disconneet it from theratchet, and hold firm while the lower sash is raise'dto the desiredposition, and release your hold, as'last described. y

.Balance-sash, in and of themselves, are not new and are thereforedisclainied. f

What Iclaim as my invention, and desire to secure by Letters Patent, is

lhe ratchet l and pawl E, when attached to the side of the sash, andused, in combination with the sash A -A and cord la, as and for thepurposes set forth. a

ORSON ARMSTRONG.

Witnesses: l r W. G. Biron, GEO. W. Bennett..

